INFLUENCE OF INTERNAL HEAT GENERATION AND THERMAL RADIATION ON THE MHD-FREE CONVECTION OF NON-NEWTONIAN FLUIDS OVER A VERTICAL PERMEABLE PLATE IN POROUS MEDIA WITH SORET/DUFOUR EFFECTS

Chuo-Jeng Huang

Abstract

An analysis is presented to investigate the influence of internal heat generation and thermal radiation on the MHD-free convection of non-Newtonian fluids over a vertical permeable plate in porous media. The heat and mass transfer characteristics due to the effect of uniform blowing/suction and double-diffusive are numerically analyzed. The surface of the vertical plate has a uniform wall temperature anda uniform wall concentration (UWT/UWC). Non-similar solutions for the transformed governing equations by Keller box method are obtained. Comparisons showed excellent agreements with the numerical data in previous works. Numerical data for the dimensionless temperature profile, the dimensionless concentration profile, the local Nusselt number and the local Sherwood number are presented for the main parameters: the power-law index of the non-Newtonian fluid, the blowing/suction parameter, the magnetic field parameter, the internal heat generation coefficient and the thermal radiation parameter which are entered in tables or plotted in figures.